Chitosan film formulations for steroid delivery after craniomaxillofacial surgery were formulated by using three different types of chitosan with respect to their molecular weight as low, medium and high. Film formulations were prepared by casting/solvent evaporation technique. In vitro characterization, film thickness, equilibrium swelling degree, in vitro release profiles and surface morphologies were investigated. For two different types of crosslinkings, the release of dexamethasone sodium phosphate (DSP) can be extended as the molecular weight increases. As a result, chitosan film formulations should be beneficial for steroid delivery for a certain time after craniomaxillofacial surgery.
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Eroğlu et al. (2007) studied this question.
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